h2.go

package main

import (
	"fmt"
	"sort"
)

// 按map的key排序
func main() {
	params := make(map[string]interface{})

	params["name"] = "xxx"
	params["age"] = 23
	params["sex"] = 0
	params["level"] = 1

	// 1.取出所有的key
	var keys []string
	for k := range params{
		keys = append(keys, k)
	}
	// 对字符串切片排序
	sort.Strings(keys)
	fmt.Println(keys)

	// 打印key, val
	for _, k := range keys{
		fmt.Printf("key: %v  val:%v \n", k, params[k])
	}
}